Home / 280,422,419.40-420,633,629.10-232,646,675.40

Finding the Fourth Proportional to 280,422,419.40, 420,633,629.10 and 232,646,675.40

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Solution

The fourth proportional to 280,422,419.40, 420,633,629.10 and 232,646,675.40 is: 348,970,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,422,419.40 : 420,633,629.10 = 232,646,675.40 : x
  2. Step 2: Convert to fraction form
    280,422,419.40/420,633,629.10 = 232,646,675.40/x
  3. Step 3: Cross multiply
    280,422,419.40x = 420,633,629.10 × 232,646,675.40
  4. Step 4: Simplify right side
    280,422,419.40x = 97,859,015,371,551,696
  5. Step 5: Solve for x
    x = 97,859,015,371,551,696/280,422,419.40
  6. Step 6: Final answer
    x = 348,970,013.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.